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EnglandBiologyQuick questions
3.7 Genetics, populations, evolution and ecosystems
Quick questions on Populations and the Hardy-Weinberg principle: allele and genotype frequency calculations - AQA A-Level Biology
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State the five conditions that must be met for a population to be in Hardy-Weinberg equilibrium. [3 marks]
What is q2?Show answer
A recessive allele causes a condition affecting 1 in 10 000 people. Calculate (a) the frequency of the recessive allele and (b) the percentage of the population that are carriers. [3 marks]
What is q3?Show answer
A biologist samples a population in two successive generations and finds the recessive allele frequency rises from 0.2 to 0.35. Explain what this shows and name one process that could cause it. [3 marks]
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